Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w9DFlPaV014994 for ; Sat, 13 Oct 2018 17:47:32 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gBM2W-00028y-75 for rs_out_1@blacksheep.org; Sat, 13 Oct 2018 16:41:16 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gBM2O-00028p-FY for rsgb_lf_group@blacksheep.org; Sat, 13 Oct 2018 16:41:08 +0100 Received: from smtp3web.tin.it ([212.216.176.237]) by relay1.thorcom.net with esmtp (Exim 4.91_59-0488984) (envelope-from ) id 1gBM2L-0005ua-31 for rsgb_lf_group@blacksheep.org; Sat, 13 Oct 2018 16:41:07 +0100 Received: from feu21 (10.192.64.31) by smtp3web.tin.it (8.6.060.43) id 5B6DEBA201CCB802 for rsgb_lf_group@blacksheep.org; Sat, 13 Oct 2018 17:40:59 +0200 Received: from (95.251.143.73) by webmailtin.pc.tim.it; Sat, 13 Oct 2018 17:40:59 +0200 Message-ID: <1666e167b14.marcocadeddu@tin.it> Date: Sat, 13 Oct 2018 17:40:59 +0200 (CEST) From: "marcocadeddu@tin.it" To: Mime-Version: 1.0 X-Originating-IP: 95.251.143.73:3088 X-Spam-Score: 1.0 (+) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hi Riccardo, probably your messagge answers the question I was placing on the reflector! :-) I fixed my DC receiver for 137 ( a stressed and then truncated coax feeding the LO ... nuts hihi ) and since early afternoon I was looking a strong carrier on 137490 plus something similar in timing to WSPR but without decode although the strenght... Now I know the setup functiond (I had 2 decodes of WSPR of Chris transmissions) but I was still wondering of that huge signal without decode! [...] Content analysis details: (1.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.216.176.237 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (marcocadeddu[at]tin.it) -0.0 SPF_PASS SPF: sender matches SPF record -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 1.0 FREEMAIL_REPLYTO Reply-To/From or Reply-To/body contain different freemails X-Scan-Signature: 7f721febd00297201968e15bc67205e5 Subject: R: Re: LF: EbNaut Autodecoder 137490 Hz Content-Type: multipart/alternative; boundary="----=_Part_18122_2223483.1539445259032" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MAILTO_TO_SPAM_ADDR autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false ------=_Part_18122_2223483.1539445259032 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Riccardo, probably your messagge answers the question I was placing on the reflector!= :-) I fixed my DC receiver for 137 ( a stressed and then truncated coax feeding= the LO ... nuts hihi ) and since early afternoon I was looking a strong ca= rrier on 137490 plus something similar in timing to WSPR but without decode= although the strenght... Now I know the setup functiond (I had 2 decodes of WSPR of Chris transmissi= ons) but I was still wondering of that huge signal without decode! Have a nice week end on LF 73, Marco IK1HSS ----Messaggio originale---- Da: riccardozoli80@gmail.com Data: 13-ott-2018 14.29 A: "LF Group" Ogg: Re: LF: EbNaut Autodecoder 137490 Hz Thanks Markus for report! I'm enjoying with "high bit rate" EbNaut with Dom= enico. I'm trying now 60 ch. with 0.05 s./sym. every 10 minutes. starting a= t 12:30 UTC. 73 de Riccardo IW4DXW Il Sab 13 Ott 2018, 13:43 Markus Vester ha scritto: Ric now running 30 characters 0.1 s symbols - Gotcha ;-) 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung----- Von: Domenico IZ7SLZ An: rsgb_lf_group Verschickt: So, 7. Okt 2018 12:17 Betreff: Re: LF: EbNaut Autodecoder 137490 Hz I ran an EbNaut beacon for almost 24h, since 10.00 UT of yesterday, for te= sting the repaired Tx antenna and ground system.I have monitored Both 'D' g= rabbers and they worked fine. I have obtained a lot of decodes. So very goo= d job Markus with the integration of Window's programs SL and EbNaut-rx. I = supposed you made some modifications at your previous EbNaut tools . Thanks= for the new grabbers.Tx setup here : SSB exciter frequency controlled by t= he old Jupiter GPS, 100 W PA, a small inv-L antenna (8 + 8 meters) and lin= ux program EbSynth by P.Nicholson. Time reference given by the same GPS usi= ng 'gdps' and 'chronyc' programs.In the night i have also received, in the = other 30-minutes time slot, Ebnaut messages from Riccardo IW4DXW. Thanks R= ick.Luis wrote:=20 Similar grabber for JT9 MF would be a great idea. Yes. It is a good idea. So based on similar job already running (auto- wsp= r) , i have added such auto-decoder in my website:https://www.qsl.net/iz7sl= z/WSPR/JT9DECODED.TXTIt uses the same RX setup (RECEIVER JRC NRD-92M GPS re= ferenced and miniwhip antenna) for recording the wspr band. Reception is ve= ry bad during the day but in nightime there is possibility to pick up signa= ls from Central Europe.So i invite the MF operators to test this grabber.Th= anks in advance.73, Domenico IZ7SLZ On Sat, 6 Oct 2018 at 12:13, VIGILANT L= uis Fern=C3=A1ndez wrote: Hi EbNaut Congratulations to both ! :-) This will be a funny tool and a great help for newcomers to EbNaut, as Tx i= s the easy part of the game Will be joining the "grabbepeater" as soon as I modify my D class PA for tr= ue 180=C2=BA phase modulation Similar grabber for JT9 MF would be a great idea. I can reach easily centra= l EU in MF but can not receive many of the stations. Last time I tried a CW activity night it was frustrat= ing to receive in remote SDRs central EU stations answering back and nothing here. Not just a matter of R= x noise. Many stations do not have enought ERP to reach. So finally decided to use the SDR for QSO an= d it was fun Yes, of course, this are not IARU blessed QSOs, but real FUN QSOs. And FUN = is a must to increase interest in this bands. We are in 21 century and ham radio also changed. We= shouldn't be so square minded to just think in therms of awards and standar QSOs. This is not HF. = Same standards shouln't apply Experimental bands are to experiment and try different aproaches with diffe= rent rules. Not to run the same old style HF QSOs, contests, awards and all that stuff My two cents ! ;-) 73 de Luis EA5DOM De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org]= en nombre de Markus Vester [markusvester@aol.com] Enviado: s=C3=A1bado, 6 de octubre de 2018 9:17 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EbNaut Autodecoder 137490 Hz Last night, Domenico IZ7SLZ and myself had an unscheduled EbNaut two-way co= ntact ;-) Well not quite a QSO, as we didn't exchange reports etc. I had se= nt a couple of 6-character messages into the blue before going to bed, and = was pleasantly surprised this morning to find Dom's replies on all three automatic decoders.=20 Attached 477 uHz spectrogram from DL0AO shows both EbNaut signals, along wi= th a few other WSPR and Opera transmissions, and 6.25 Hz spaced Loran lines= from Slonim. Note that the receive level of nearby stations (DK1IS and DF6= NM) is being reduced by SpecLab's frequency-selective limiter to avoid overloading and noiseblanker artifact= s. Thank you very much Dom! Now we're hoping for more and distant signals, lik= e from Spain or U.S. ;-) 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: Mi, 3. Okt 2018 14:46 Betreff: LF: EbNaut Autodecoder 137490 Hz After some playing around, we are running an experimental EbNaut autodecode= r at DL0AO and DF6NM under Windows. Receive parameters are currently 137490.000 Hz, 6 char, 3 s, 8K19A crc 16, start hh:00 and hh:30 and preliminary results can be found here (scroll to bottom): DL0AO: https://vlf.u01.de/LF/LFgrabber/ebnautresults.txt DF6NM: http://df6nm.darc.de/opds/ebnautresults.txt This is nowhere near as perfect as Domenico's Linux solution, and our softw= are contraption is nowhere near a stable state. Anyhow a few test transmiss= ions with a couple of microwatts radiated power lead to useful decodes, and= a trace also appeared in the opds spectrogram at DK7FC. It would be nice to find some more signals later... Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Domenico IZ7SLZ An: rsgb_lf_group Verschickt: Di, 2. Okt 2018 1:18 Betreff: Re: LF: 2200M EbNaut Beacon LF EbNauters, thanks to Markus and Stefan for the comments and to Rob for putting on air = a very good signal. I was also surprised to see the decode achieved by the auto-decoder without= any time and frequency offset ! Propagation conditions are becoming better, but noise here is still high. I tried a deep investigation: no further decode, but with an offset of -0.= 0001 Hz and +0.005s (ooops !) i have improved the 2018-09-30_03:00 UT decod= e: initial reference phase -62.3 amplitude 2.049e-01 phase 0 0 0 0 0 carrier phase: -6.9 deg carrier Eb/N0: 0.5 dB carrier Es/N0: -10.10 dB carrier S/N: 19.87 dB in 672.0 uHz, -11.86 dB in 1Hz, -45.84 dB in 2.5kHz elapsed 58 found rank 43 ber 3.4980e-01 Eb/N0 -0.6 M -7.389708042e+00 ph 0 0,0,0,0 [K3= RWR_FM18QI_73] Looking on the October 1st recordings, with these offsets, i got another d= ecode at 02:30 UT: initial reference phase -6.6 amplitude 2.356e-01 phase 0 0 0 0 0 carrier phase: -1.2 deg carrier Eb/N0: 0.4 dB carrier Es/N0: -10.23 dB carrier S/N: 19.74 dB in 672.0 uHz, -11.99 dB in 1Hz, -45.97 dB in 2.5kHz elapsed 58 found rank 84 ber 3.6694e-01 Eb/N0 -1.7 M -7.504411221e+00 ph 0 0,0,0,0 [K3= RWR_FM18QI_73] QRB is about 7600 km. Working conditions here, (vintage =F0=9F=98=80) as usual: - miniwhip (a modified ex-Navtex antenna from Furuno ; see attachment) - receiver JRC NRD-92M with external 10 MHz reference signal steered by GP= S - a modest PC (Intel P4 CPU 3.50GHz x2) from scrap with Ubuntu 14.04LTS - software vlfrx-tool from Paul Nicholson. I have attached also the latest version of the bash './autoebnaut' i.e. th= e list of the commands that recall vlfrx-tool programs to start the decoder= each 30 minutes. Other linux programs are running in background: - vtcard and vttime to manage and calibrate the audio card - vtwrite to store audio coming from receiver - gpsd and chrony to manage the nmea and 1pps from neo8 gps (connected at s= erial COM1) and adjusting the PC clock. 73, Domenico IZ7SLZ=20 =20 ------=_Part_18122_2223483.1539445259032 Content-Type: text/html;charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Riccardo,

probably your messagge answers the question I was placi= ng on the reflector! :-)
I fixed my DC receiver for 137 ( a stressed and= then truncated coax feeding the LO ... nuts hihi ) and since early afterno= on I was looking a strong carrier on 137490 plus something similar in timin= g to WSPR but without decode although the strenght...
Now I know the set= up functiond (I had 2 decodes of WSPR of Chris transmissions) but I was sti= ll wondering of that huge signal without decode!

Have a nice week en= d on LF

73, Marco IK1HSS

----Messaggio originale----
Da: riccardozoli80@gmail.com
Data: 13-ott-2018 14.29
A: "LF Group"<rsgb_lf_group@blacksheep.org>
Ogg: Re: LF: EbNaut Autodecoder 137490 Hz


Thanks Mark= us for report! I'm enjoying with "high bit rate" EbNaut with Domenico. I'm = trying now 60 ch. with 0.05 s./sym. every 10 minutes. starting at 12:30 UTC= .

73 de Riccardo IW4DXW<= /div>

Il Sab 13 Ott 20= 18, 13:43 Markus Vester <markusvester@aol.com> ha scritto:
=
Ric now running 30 charact= ers 0.1 s symbols - Gotcha ;-)

73, Markus (DF6NM)


-----Ur= spr=C3=BCngliche Mitteilung-----
Von: Domenico IZ7SLZ <iz7slz.domenico@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: So, 7. Okt 201= 8 12:17
Betreff: Re: LF: EbNaut Autodecoder 137490 Hz


I ran an EbN= aut beacon for almost 24h, since 10.00 UT of yesterday,  for testing t= he repaired Tx antenna and ground system.
I ha= ve monitored Both 'D' grabbers and they worked fine. I have obtained a lot = of decodes. So very good job Markus with the integration of Window's progra= ms SL and EbNaut-rx. I supposed you made some modifications at your previou= s EbNaut tools . Thanks for the new grabbers.
=
Tx setup here : SSB exciter frequency control= led by the old Jupiter GPS, 100 W PA, a small inv-L antenna (8 + 8 meters)&= nbsp; and linux program EbSynth by P.Nicholson. Time reference given by the= same GPS using 'gdps' and 'chronyc' programs.

In the night i have also received, in the other 30-minutes time= slot,  Ebnaut messages from Riccardo IW4DXW. Thanks Rick.
<= br clear=3D"none">
Luis wrote:
&n= bsp; Similar grabber for JT9 MF would be a great = idea.

Yes. It is a good idea. So based = on similar job already running (auto- wspr) , i have added such auto-decode= r in my website:


It uses th= e same RX setup (RECEIVER JRC NRD-92M GPS referenced and miniwhip antenna) = for recording the wspr band. Reception is very bad during the day but in ni= ghtime there is possibility to pick up signals from Central Europe.

So i invite the MF operators to test this = grabber.

Thanks in advance.

73, Domenico IZ7SLZ






On Sat, 6= Oct 2018 at 12:13, VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es> wrote:
Hi EbNaut

Congratulations to both ! :-)

This will be a funny tool and a great help for newcomers to EbNaut, as= Tx is the easy part of the game
Will be joining the "grabbepeater" as s= oon as I modify my D class PA for true 180=C2=BA phase modulation

Similar grabber for JT9 MF would be a g= reat idea. I can reach easily central EU in MF but can not receive
many of the stations. Last time I tried= a CW activity night it was frustrating to receive in remote SDRs
central EU stations answering back and nothing here. Not just a matter= of Rx noise. Many stations do
not have enought ERP to reach. So finally decided to use the SDR for Q= SO and it was fun

Yes, of course, this are not IARU bless= ed QSOs, but real FUN QSOs. And FUN is a must to increase
interest in this bands. We are in 21 ce= ntury and ham radio also changed. We shouldn't be so square
minded to just think in therms of award= s and standar QSOs. This is not HF. Same standards shouln't apply
Experimental bands are to experiment and try different aproaches with = different rules. Not to run the same
old style HF QSOs, contests, award= s and all that stuff

My two cents ! ;-)


73 de Luis
EA5DOM

De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] en nombre de Markus Vester [markusvester@aol.com]
Enviado: s=C3=A1bado, 6 de octubre de 2018 9:17
Para: rsgb_l= f_group@blacksheep.org
Asunto: Re: LF: EbNaut Autodecoder 137490 Hz

Last night, Domenico IZ7SLZ and myself had an unscheduled Eb= Naut two-way contact ;-) Well not quite a QSO, as we didn't exchange report= s etc. I had sent a couple of 6-character messages into the blue before goi= ng to bed, and was pleasantly surprised this morning to find Dom's replies on all three automatic decoders.

Attached 477 uHz spectrogram from DL0AO shows both EbNaut signals, along wi= th a few other WSPR and Opera transmissions, and 6.25 Hz spaced Loran lines= from Slonim. Note that the receive level of nearby stations (DK1= IS and DF6NM) is being reduced by SpecLab's frequency-selective limiter to avoid overloading and noiseblanker artifact= s.

Thank you very much Dom! Now we're hoping for more and distant signals, lik= e from Spain or U.S. ;-)

73, Markus (DF6NM)


-----Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vester <mark= usvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mi, 3. Okt 2018 14:46
Betreff: LF: EbNaut Autodecoder 137490 Hz

After some playing around, we are running an experimental EbNaut autod= ecoder at DL0AO and DF6NM under Windows. Receive parameters are c= urrently
 137490.000 Hz, 6 char, 3 s, 8K19A crc 16, start hh:00 and hh:30
and preliminary results can be found here (scroll to bottom):
DL0AO: https://vlf.u01.de/LF/LFgrabber/ebnautresults.txt<= br clear=3D"none"> DF6NM: http://df6nm.darc.de/opds/ebnautresults.txt

This is nowhere near as perfect as Domenico's Linux solution, and our softw= are contraption is nowhere near a stable state. Anyhow a&nbs= p;few test transmissions with a couple of microwatts radiated pow= er lead to useful decodes, and a trace also appeared in the opds spectrogram at DK7FC. It would be nice to find some more signals= later...

Best 73,
Markus (DF6NM)

-----Urspr=C3=BCngliche Mitteilung-----
Von: Domenico IZ7SLZ <iz7slz.domenico@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 2. Okt 2018 1:18
Betreff: Re: LF: 2200M EbNaut Beacon

LF EbNauters,

thanks to Markus and Stefan for the comments and to Rob for putting on= air a very good signal.
I was also surprised to see the decode achieved by the auto-decoder wi= thout any time and frequency offset !
Propagation conditions are becoming better, but noise here is still hi= gh.
I tried a deep investigation: no further decode,  but with an off= set of -0.0001 Hz and +0.005s (ooops !) i have improved the 2018-09-30= _03:00 UT decode:

initial reference phase -62.3 amplitude 2.049e-01
phase   0    0    0  &nbs= p; 0    0
carrier phase: -6.9 deg
carrier Eb/N0: 0.5 dB
carrier Es/N0: -10.10 dB
carrier S/N: 19.87 dB in 672.0 uHz, -11.86 dB in 1Hz, -45.84 dB in 2.5kHz elapsed 58
found rank 43 ber 3.4980e-01 Eb/N0 -0.6 M -7.389708042e+00 ph 0 0,0,0,0 [K3= RWR_FM18QI_73]

Looking on the October 1st recordings, with these offsets,  i got= another decode at 02:30 UT:

initial reference phase -6.6 amplitude 2.356e-01
phase   0    0    0  &nbs= p; 0    0
carrier phase: -1.2 deg
carrier Eb/N0: 0.4 dB
carrier Es/N0: -10.23 dB
carrier S/N: 19.74 dB in 672.0 uHz, -11.99 dB in 1Hz, -45.97 dB in 2.5kHz elapsed 58
found rank 84 ber 3.6694e-01 Eb/N0 -1.7 M -7.504411221e+00 ph 0 0,0,0,0 [K3= RWR_FM18QI_73]

QRB  is about 7600 km.

Working conditions here, (vintage =F0=9F=98=80) as usual:
- miniwhip (a modified ex-Navtex antenna from Furuno ; see attachment)=
- receiver JRC NRD-92M with external 10 MHz reference signal steered b= y  GPS
- a modest PC (Intel P4 CPU 3.50GHz x2) from scrap with Ubuntu 14.04LT= S
- software vlfrx-tool from Paul Nicholson.

I have attached also the latest version of  the bash './autoebnau= t' i.e. the list of the commands that recall vlfrx-tool programs to start t= he decoder each 30 minutes.
Other linux programs are running in background:
- vtcard and vttime to manage and calibrate the audio card
- vtwrite to store audio coming from receiver
- gpsd and chrony to manage the nmea and 1pps from neo8 gps (connected= at serial COM1) and adjusting the PC clock.


73, Domenico IZ7SLZ


 


------=_Part_18122_2223483.1539445259032--